Whiteline ALK - Subaru Forester Owners Forum
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post #1 of 81 (permalink) Old 08-23-2006, 10:06 PM Thread Starter
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Whiteline ALK

Thinking about installing a Whiteline ALK, but after researching around for fitment, I've found some posts that indicated that Foresters should use the castor bushing kit KCA375 instead of a full on ALK kit.

Can someone verify please? What would be the difference between the usage of the bushing kit alone and the ALK kit?

Thanks


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post #2 of 81 (permalink) Old 08-24-2006, 08:50 AM
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The forester doesn't need an ALK. The design of the factory piece and the ALK are so close, there there isn't a need for it.

There was a notion that all development of the ALK was taken from the Forester, and implemented into the impreza.

The bushing adds +0.5 of static castor, and is to be placed into the original bushing housing.


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post #3 of 81 (permalink) Old 08-24-2006, 09:12 AM
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I did 'em when I did my front STI lower control arms. The mix of the two made a substancial difference over stock.

BTW, I've got a set of the stock STI bushings that came with the control arms I'd be willing ot part with?

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post #4 of 81 (permalink) Old 08-24-2006, 09:29 AM Thread Starter
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Quote:
Originally Posted by teiva-boy
The forester doesn't need an ALK. The design of the factory piece and the ALK are so close, there there isn't a need for it.

There was a notion that all development of the ALK was taken from the Forester, and implemented into the impreza.

The bushing adds +0.5 of static castor, and is to be placed into the original bushing housing.
Does this apply to a Forester with modified suspension, i.e. coilovers, lowering springs with STI or WRX struts?

Should there be an increase in NVH with the bushing kit compared to the ALK?

Thanks

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post #5 of 81 (permalink) Old 08-24-2006, 09:32 AM
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Quote:
Originally Posted by teiva-boy
The forester doesn't need an ALK. The design of the factory piece and the ALK are so close, there there isn't a need for it. .
Are you sure about that? Last time I checked when I crawled underneath the car to compare the stock piece it is nothing like the Whiteline ALK. The stock one on the Forester is exactly like the stock ones on a stock Impreza.

Stock control arm bushings are liquid filled. Whiteline ALK bushings are polyurethane and the design increases caster which is a good thing.
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post #6 of 81 (permalink) Old 08-24-2006, 10:50 AM
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I have a set on Moose. The Whiteline ALK bits do, in fact, make a significant difference. Front end grip is higher in the turns (dynamic camber).

Contrary to the name, the ALK bits will create more front end dive and lift.

Quote:
The forester doesn't need an ALK. The design of the factory piece and the ALK are so close, there there isn't a need for it.

There was a notion that all development of the ALK was taken from the Forester, and implemented into the impreza.

The bushing adds +0.5 of static castor, and is to be placed into the original bushing housing.
I have to disagree with you. Side by side, the mounts are definitely different.


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post #7 of 81 (permalink) Old 08-24-2006, 11:29 AM
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In regards to an XT, this is straight from Whiteline themselves:

Quote:
There is no particular benefit in fitting the Whiteline ALK to a Forrester as the housing that supports the bush is very similar shape to that of the ALK, therefore there will be no anti-lift benefits provided by the ALK, only caster increase.
The bush used in the Whiteline ALK is specially designed with the bore having a particular angle designed in it to accommodate the re-aligned control arm in order to prevent premature bush wear. This feature of the ALK bush is of no use on the Forrester as the control arm will not be re-aligned therefore creating extra load on specific area's of the bush, creating premature wear.
It is for this reason we have developed bush part # KCA375, a low compliance polyurethane bush that provides an additional 0.5 degree's of static caster increase, to be installed into the original bush housing.

I hope this help you.
Cheers
Wayne C
Wayne is the technical support for Whiteline in AUS.

This information is provided "as-is".

Last edited by teiva-boy; 08-24-2006 at 12:46 PM.
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post #8 of 81 (permalink) Old 08-24-2006, 12:28 PM
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Is wayne talking SG5's or SF5?

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post #9 of 81 (permalink) Old 08-24-2006, 12:34 PM
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SG, but the part applies to either.

Additionally, if you go to whiteline's site, and pick an SF or SG, an ALK is not listed as an option. The bushing is however.

If choosing an impreza, both the bushing and the ALK are options that fit.

This information is provided "as-is".
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post #10 of 81 (permalink) Old 08-24-2006, 12:56 PM
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teiva-boy:

LOL you said "owned" and not pwnt. Not that either is really that funny.

Excuse me for questioning your source, but I was drawing from personal experience. If possible, it would be prudent to post said sources along with your comments.

So does this apply to a lowered Forester, too? I did a side by side comparison and the mounts honestly look different. According to your correspondence, installing an Impreza design ALK will cause premature bushing wear? How do you explain the change in front end dive and lift?

BTW- Wayne spelled Forester wrong.



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post #11 of 81 (permalink) Old 08-24-2006, 01:09 PM
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I'll post sources if I feel it's necessary. Thank you.

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post #12 of 81 (permalink) Old 08-24-2006, 01:11 PM
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I fitted an ALK to my modded SF5 after being given it buy a member who had fitted it to his car end removed it after he fond he didn't like the effects it had on his SF5. I had a full 4 wheel alignment and camber adjustment with my pillowball top mounts at the same time as this so the car was totally different from before and I can't tell if it's just the alignment, The ALK or a combo of both. I felt it was the later.

The point I'm trying to make is that the previous owners car was totally different with it on sothey must have made a difference.

PS lets keep it friendly too guys we are all just trying to keep each other informed. let not get into a pissing contest

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post #13 of 81 (permalink) Old 08-24-2006, 01:55 PM
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Quote:
Originally Posted by teiva-boy
In regards to an XT, this is straight from Whiteline themselves:



Wayne is the technical support for Whiteline in AUS.
I call incorrect reference and information on Wayne's part. If you ever look at the Whiteline and stock SG parts - it is not identical in design at all. I will stand by that until Wayne can prove the two designs are the same otherwise. Unless I'm just blind and can't tell the difference.
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post #14 of 81 (permalink) Old 08-24-2006, 08:59 PM Thread Starter
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Maybe a call out to a couple of vendors may clear up some issues. I'll post my findings tomorrow.

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post #15 of 81 (permalink) Old 08-27-2006, 01:44 PM
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Much like NorthWest Tan I did a whiteline ALK on my Forester and noticed a huge improvement in turn-in.

I'm not sure why Whiteline feels it is not necessary, esp considering that after I didit, I did not have it re-aligned, nor did I make any other suspension alterations.

It works.

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